Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D90/00—Component parts, details or accessories for large containers
  • B65D90/02—Wall construction
  • B65D90/08—Interconnections of wall parts; Sealing means therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
  • B65D5/42—Details of containers or of foldable or erectable container blanks
  • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
  • B65D5/441—Reinforcements
  • B65D5/443—Integral reinforcements, e.g. folds, flaps
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
  • B65D11/10—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of polygonal cross-section and all parts being permanently connected to each other
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
  • B65D11/18—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected
  • B65D11/1893—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected with semidetachable components, i.e. with some side walls hinged to each other or to a base panel and the other side walls being detachable to allow collapsing of the container
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
  • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
  • B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
  • B65D21/0215—Containers with stacking feet or corner elements
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
  • B65D5/001—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper stackable
  • B65D5/0015—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper stackable the container being formed by folding up portions connected to a central panel
  • B65D5/003—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper stackable the container being formed by folding up portions connected to a central panel having ledges formed by extensions of the side walls
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
  • B65D5/32—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray
  • B65D5/322—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding a single blank to essentially U-shape with or without extensions which form openable lid elements
  • B65D5/323—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding a single blank to essentially U-shape with or without extensions which form openable lid elements and two further opposed body panels formed from two essentially planar blanks
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S229/00—Envelopes, wrappers, and paperboard boxes
  • Y10S229/915—Stacking feature
  • Y10S229/916—Means for ventilating while stacked
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S229/00—Envelopes, wrappers, and paperboard boxes
  • Y10S229/915—Stacking feature
  • Y10S229/919—Reinforced wall

Definitions

• This invention relates to packaging and shipping containers which need not be fully enclosed but must be sturdy enough to protect the contents, typically produce, during handling and shipment. More particularly, the invention relates to a container of this type which employs more economical end panels.
• Articles such as produce ideally should be packaged in containers which protect the contents against bruising or other damage during shipment and handling.
• the containers should also present an appealing appearance so that they can be used as retail packages after reaching their final destination, and should be economical as well.
• One type of container used to package produce is comprised of separate rigid end panels about which a flexible cover sheet is wrapped to form the bottom, side and top panels.
• the end panels include stacking projections on their upper or lower edge and stacking recesses on their opposite edge. When the containers are stacked, the projections from one container fit into the recesses of the next higher or lower container.
• the flexible sheet includes slots for receiving the stacking projections and the corners of the end panels. Means are also provided on the end panels for holding the ends of the sheet in place. Typically, the ends of the sheet are spaced from each other to provide a partially open top panel.
• the containers permit ready circulation of air to maintain the produce fresh and also serve as retail packages after reaching their final destination.
• the end panels are typically formed of thick paperboard, pressed board or other readily available rigid material, while the flexible cover sheets are typically formed of paperboard of a thickness normally used in the manufacture of carriers from foldable paperboard blanks. Due to strength requirements the thickness of the end panels is typically several times greater than the thickness of the cover sheet. The end panels thus comprise a very substantial part of the cost of the containers.
• a main object of the invention is to provide a produce container which makes use of the basic design concept referred to above but employs end panels which are more economical but nevertheless meet the strength requirements of the container.
• the end panels may be designed so that both the main body portion and the connected end flaps include aligned projections, or so that only one of them includes projections. Other designs permit the end portions of the end panels to be of three-ply construction.
• the end panels of the invention provide sufficient strength to withstand loading and shipping stresses, yet are more economical than the usual type of end panel formed from relatively thick rigid material.
• FIG. 1 is a pictorial view of a container embodying the concepts of the invention
• FIG. 2 is an end elevation of the container
• FIG. 3 is a plan view of the blank used in forming the container of FIG. 1;
• FIG. 4 is a plan view of a blank for forming the end panels of the container
• FIG. 5 is a partial pictorial view of the blank of
• FIG. 4 after it has been folded to form an end panel
• FIG. 6 is a plan view of a modified end panel blank
• FIG. 6 after it has been folded to form a modified end panel
• FIG. 8 is a plan view of another modified end panel blank
• FIG. 9 is a partial pictorial view of the blank of FIG. 8 after it has been folded to form another modified end panel;
• FIG. 10 is a plan view of a further modified end panel blank
• FIG. 12 is a plan view of another modified end panel blank designed to be used with a stiffening insert; and FIG. 13 is a partial pictorial view of one end of a modified container.
• a container 10 of the type embodying the concepts of the invention is comprised of a flexible cover sheet 12 and rigid end panels 14.
• the cover sheet forms the side panels 15 and the bottom panel
• the end panel shown in FIGS. 1 and 2 is of generally rectangular shape, having upper and lower edges 18 and 20, respectively, and side edges 22. Projecting upwardly from the end panel are two spaced stacking projections 24 having side edge portions 26, which taper outwardly to a point slightly above or approximately on the plane of the upper panel edge 18, and side edge portions 28 which taper inwardly for a short distance from the lower end of the side edge portions 26. Adjacent each side of the projections 24 are recesses 30 and 32. Each of the recesses 30 and 32 has a side edge comprised of the tapered projection edge portion 28. The opposite edge 34 of the recess 30 is tapered outwardly, while the recess 32 terminates at tapered shoulder 36, which forms the upper corners of the end panel.
• the lower corners are also tapered at 38, while the lower edge 20 includes recesses 39 located opposite the projections 24.
• An opening 40 provides a hand grip for lifting the container and allowing air to flow into the container to keep packaged produce in fresh condition.
• the end panels are not thick single-ply panels as in conventional produce carriers, but are laminated panels comprised of at least two layers of relatively low caliper. Still referring to both FIGS, l and 2, the stacking projections 24 extend up through slots 42 in the cover sheet to hold the ends of the cover sheet in place, while the upper tapered shoulders 36 of the end panels extend through slots 44 in upper bevel panels 46. The lower tapered shoulders 38 extend through slots 47 in lower bevel panels 48. As can be seen in FIG. 1, the stacking projections 24 and the upper and lower corners 36 and 38 of the end panels are of two-ply construction, while the body of the end panels between the recesses 30 is of single-ply construction.
• the blank 50 used to form the cover sheet of the container of FIG. 1 is shown in FIG. 3, wherein similar reference numerals to those used in FIG. 1 denote similar elements.
• the blank includes a series of parallel fold lines which allow the sheet to be folded about the end panels to form the bottom, side, top and bevel panels of the container.
• the centrally located bottom panel section 16 is connected by fold lines 52 to lower bevel panel sections 48, which in turn are connected by fold lines 54 to side panel sections 15.
• Upper bevel panel sections 46 are connected to the side panel sections 15 by fold lines 56 and to narrow top panel sections 58 by fold lines 60.
• the end portions of the top panel sections extend outwardly to form locking tabs 62.
• a blank 70 for forming the end panel 14 of the container includes a main body portion 72 which is identical in shape and size to the end panel 14.
• the components of the main body portion which are similar to the components of the end panel 14 bear the same reference numerals. Instead of the body section terminating at the side edges of the end panel, however, it terminates in vertical fold lines 74 which connect the main body portion 72 to end reinforcing flaps 76.
• the flaps 76 include stacking projections 24' which are similar to, but reversed from, the projections 24.
• the flaps 76 of the blank 70 are folded in about the fold lines 74 and adhered to the main body portion 72 by glue, as indicated by the stippling in FIG. 4.
• This construction increases the strength of the end portions of the end panels, which are the most highly stressed areas of the end panels of the container, but employs a minimum of paperboard.
• the laminated construction of the end panels is considerably more economical than the typical rigid webs conventionally employed as the end panels, yet provides the container with adequate strength.
• FIG. 6 One end of a modified end panel blank 78 is illustrated in FIG. 6, which includes a flap 76 identical to the flap 76 of FIG. 4 incorporating a stacking projection 24' and a stacking recess 39*.
• the main body 80 of the blank is similar to the main body 72 of FIG. 4, except that it does not include stacking projections or stacking recesses.
• the resulting end panel shown in FIG. 7, is comprised of a main body portion of single-ply construction and end portions of two-ply construction.
• the end panel of FIG. 7 has stacking projections and stacking recesses of only single-ply construction.
• FIG. 8 Another modified end panel blank is shown in FIG. 8 at 82.
• the main body portion 72 is identical to the main body portion 72 of FIG. 4.
• an additional ply of material may be connected to the main body portion of the end panel blank.
• the blank 86 of FIG. 10 is an example of such an arrangement.
• the main body portion 72 and the end flaps 76 are similar to the structure of the blank 70 shown in FIG. 4.
• reinforcement flap 90 Connected to the upper edge of the body portion 72 along fold line 88 is reinforcement flap 90.
• the flap 90 includes a handle opening 40' similar to handle opening 40. Cutouts 92 extend from the ends of the fold line 88 to the ends of the flap 90.
• FIG. 11 illustrates the end portion of the resulting panel.
• the projections 24 and 24' combine to form a two-ply projection, while the recesses 39 and 39', which are not visible in this view, form a two-ply recess.
• the main body portion is of two-ply construction formed by the main body portion 72 and the flap 90, and the end portions are of three-ply construction due to the presence of the flaps 76.
• the end panels are formed from relatively thin paperboard compared to the relatively thick, rigid end panels of the prior art, this construction provides end panel strength which is normally adequate to resist the stresses to which it is subjected during use. If, however, it is found that the end panels require even greater strength, as when the container is expected to be subjected to excessively high forces or when the paperboard from which the end panels are formed is of very low caliper, the end panels may be further reinforced by employing a stiffener insert. Such an arrangement is illustrated in FIG. 12, wherein a separate relatively thick insert and a triple thick arrangement at the ends of the end panels are provided.
• the blank 94 is comprised of a main body portion 72 and end flaps 76 identical to the blank 70 of FIG.
• a separate insert 100 is provided which is substantially identical in shape and size to the main body portion 72, including a handle opening 102, stacking projections 104 and stacking recesses 106. To form an end panel from the blank and insert of FIG. 12 the insert is aligned with and placed on the main body portion 72, after which the end flaps 76 are folded into place and glued to the insert. Since an insert would be employed only in those situations where the strength requirements of the end panels of a container are quite severe, it is anticipated that the insert would be thicker than the ply of the blank 94.
• the spaced fold lines 96 and 98 are provided to compensate for that thickness, with the area between the fold lines corresponding to the edge of the insert.
• a modified container 108 shown in FIG. 13, is similar to the container of FIG. 1 except for the design of the ends of the bottom panel.
• the bottom panel 16 in this arrangement includes a glue flap 110 at either end of the bottom panel connected by fold line 112.
• glue flaps permits the end panels or webs 14 to be adhered to the glue flaps prior to assembly of the container, so that the container can be shipped in blank form with the end panels attached. Assembly of the container may proceed as described in connection with the container of FIG. 1. Note that the glue flap is relatively narrow, which leaves intact the slots 64 in the bottom panel and does not interfere with access to the projection recesses 39.
• the container of the invention has been shown for the purpose of illustration as being comprised of a single bin formed by the space between the two end panels, it is within the scope of the invention to provide one or more interior cross panels to divide the container into multiple bins, if desired. It will be appreciated that the thickness of the various plies of material have been exaggerated in the drawing in order to illustrate their presence, and that the plies of an actual container would be substantially thinner relative to the other dimensions of the container.
• the invention provides an end panel which can be formed from a single blank and yet provide for double or triple thicknesses at the end portions of the panel.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Cartons (AREA)
• Packaging Frangible Articles (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=24065077

Family Applications (1)

Country Status (12)

Families Citing this family (4)

Citations (15)

Family Cites Families (4)

• 1995
  • 1995-08-24 US US08/518,694 patent/US5575419A/en not_active Expired - Fee Related
• 1996
  • 1996-05-16 JP JP9510224A patent/JPH10507990A/ja active Pending
  • 1996-05-16 BR BR9606490A patent/BR9606490A/pt not_active Application Discontinuation
  • 1996-05-16 AU AU57515/96A patent/AU695745B2/en not_active Ceased
  • 1996-05-16 WO PCT/US1996/007038 patent/WO1997008064A1/en not_active Application Discontinuation
  • 1996-05-16 EP EP96915854A patent/EP0783440A4/en not_active Withdrawn
  • 1996-05-16 NZ NZ307997A patent/NZ307997A/en unknown
  • 1996-05-16 CA CA002201149A patent/CA2201149A1/en not_active Abandoned
  • 1996-07-11 CO CO96036568A patent/CO4520204A1/es unknown
  • 1996-08-23 ZA ZA967192A patent/ZA967192B/xx unknown
  • 1996-11-11 KR KR1019960706368A patent/KR970702811A/ko not_active Application Discontinuation
  • 1996-11-14 IL IL11912396A patent/IL119123A0/xx unknown

Patent Citations (15)

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